:py:mod:`ccs_fit.common.neighborlist`
=====================================

.. py:module:: ccs_fit.common.neighborlist

.. autoapi-nested-parse::

   Common neighbor list routines used by the CCS project.



Module Contents
---------------


Functions
~~~~~~~~~

.. autoapisummary::

   ccs_fit.common.neighborlist.pair_dist



.. py:function:: pair_dist(atoms, rcut, ch1, ch2)

   Calculates the pairwise distances between two types of atoms within a
      certain cuttoff.

   :param atoms: list of ASE Atoms objects
   :type atoms: list
   :param rcut: neighbor list cutoff in Angstrom
   :type rcut: float
   :param ch1: atom species 1
   :type ch1: str
   :param ch2: atoms species 2
   :type ch2: str

   :returns: list of distances in Bohr, i.e. atomic units
   :rtype: dists_rounded (list)